package java_zuoye_2;

public class homework_1 {
	public static void main(String[] arg) {
		double save = 2.5;
        int days = 0;
        double totalAmount = 0.0;
        while (totalAmount < 100.0) {
            days++;
            totalAmount += save;

            if (days % 5 == 0) {
                totalAmount -= 6;
            }
        }
		System.out.println(days);
	}
}
